delete_main_auth_descriptor
Deletes the main auth descriptor for the account. It does not add a new one, so it leaves the account prone to being inaccessible.
Using this function directly on a user account might end up leaving it misconfigured. It's strongly advised to use update_main_auth_descriptor
if the main auth descriptor should be changed.
Can only be called from an operation.
Throws "MISSING AUTH DESCRIPTOR"
if the account has no main_auth_descriptor
associated.
Parameters
account
the account whose main auth descriptor should be removed